麻豆约拍

Espionage via excrement -- a former Soviet agent says the KGB studied the stool samples of foreign leaders to build up psychological profiles. Igor Atamanenko made the claims in a Russian newspaper and he's published a book based on his research. Our Moscow correspondent, Steve Rosenberg, looks into a Soviet story not to be sniffed at.

(Photo: Mao and Stalin. Credit: Associated Press)